Answer:
The answer is D.Membrane-enclosed organelles
Explanation:
Eukaryotic cells have a cytoplasm organized in compartments, with separate or interconnected organelles, limited by biological membranes that have the same nature as the plasma membrane. In the nucleus is the genetic material in the form of chromosomes, where all the necessary information is given so that all the processes both intracellular and outside the cell are carried out.
Eukaryotic cells are more complex than prokaryotic cells and contain various membrane-enclosed organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and others. The correct answer is D. Membrane-enclosed organelles.
These organelles perform specific functions within the eukaryotic cell. Prokaryotic cells, on the other hand, lack membrane-bound organelles and have a simpler internal structure. They do have cell membranes, DNA, and cytoplasm, which are also present in eukaryotic cells.
Eukaryotic cells have the additional feature of membrane-enclosed organelles, which provide them with compartmentalization and specialization of cellular functions, whereas prokaryotic cells lack these organelles and have a more simplistic internal structure.
Therefore, the correct answer is D. Membrane-enclosed organelles.
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b. industry
c. agriculture
d. none of the above
Forestry does not contribute to water pollution. Therefore, option A is correct.
Water contamination is the tainting of bodies of water, typically as a result of human activity, which has a detrimental impact on their uses. Aquifers, reservoirs, lakes, rivers, seas, and groundwater are all examples of bodies of water. When contaminants are introduced into these water bodies, water contamination results.
The main causes of water pollution are bacteria, viruses, parasites, insecticides, pharmaceuticals, plastics, feces, radioactive materials, fertilizers, and pesticides. These compounds are frequently invisible contaminants since they do not always alter the color of the water.
Industry and agriculture cause water pollution, while forestry does not. Hence, option A is correct.
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Answer: d none of the above
Explanation:
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Technically, X-ray crystallography, which is like an unfocused electron microscope, was first used to see DNA structure. Scientists today use more refined electron microscopes for researching DNA and its structure
Explanation:
The electron microscope is a kind of microscope that uses a beam of electrons to produce an image of the specimen. It is acceptable of important special magnifications and has a greater resolving power than a light microscope, providing it to see much smaller objects in precise detail.
The first strands of DNA were observed through an electron microscope. This type of microscope offers enough magnification and resolution to visualize highly detailed molecular structures, including DNA.
The first strands of DNA were observed through an electron microscope. The Electron microscope, capable of magnifying objects up to a million times, allowed scientists to view much smaller particles, including the structure of DNA. The resolution of electron microscopes is incredibly high, enabling them to see highly detailed structural information that a tunneling microscope, simple microscope, or compound light microscope could not have revealed. In comparison, these microscopes provide less detail and weaker magnification, proving them insufficient for studying something as intricate as DNA structure.
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They contained toxins or pollutants that eliminated natural competitors of the zebra mussel.
They contained few or no natural predators of the zebra mussel.
They contained few or no natural species occupying the niche filled by the zebra mussel.
Answer:
They contained few or no natural species occupying the niche filled by the zebra mussel.
Explanation:
All the available options are capable of contributing to the success of the zebra mussel in the United State water.
However, it is not true that the United State water contained few or no natural species occupying the niche filled by the zebra mussel. The zebra mussel are exotic species that got into the United State water around 1991 and were able to outcompete the native species and multiply rapidly, a characteristic of an invasive species.
Abundance of prey for the zebra mussel will ensure that their population thrives due to adequate availability of food.
The presence of toxins or pollutants that eliminate natural competitors of the zebra mussel will enable their population to thrive due to lack of competition for resources, provided the toxins/pollutants are not toxic to the zebra mussels themselves.
The presence of few or no natural predator will also enables the population of zebra mussels to thrive because that is another limiting factor removed.
Answer:
Agglutination or clumping occurs when blood that contains the particular antigen is mixed with the particular antibody.
Explanation:
Clumping of blood types takes place thus;
A+ - Agglutination with Anti-A and Anti-Rh. No agglutination with Anti-B.
A- - Agglutination with Anti-A. No agglutination with Anti-B and Anti-Rh.
B+ - Agglutination with Anti-B and Anti-Rh. No agglutination with Anti-A.
B- - Agglutination with Anti-B. No agglutination with Anti-B and Anti-Rh.
AB+ - Agglutination with Anti-A, Anti-B and Anti-Rh.
AB- - Agglutination with Anti-A and Anti-B. No agglutination with Anti-Rh.
O+ - Agglutination with Anti-Rh. No agglutination with Anti-A and Anti-B.
O- - No agglutination with Anti-A, Anti-B and Anti-Rh.
Answer:
Incomplete dominance
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.